SUNRPC: task should be exit if encode return EKEYEXPIRED more times

If the rpc.gssd always return cred success, but now the cred is expired, then the task will loop in call_refresh and call_transmit. Exit the rpc task after retry. Signed-off-by: ZhangXiaoxu <[email protected]> Signed-off-by: Anna Schumaker <[email protected]>
josf · May 9, 2019 · 9c5948c · 9c5948c
1 parent f02f375
commit 9c5948c
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
@@ -1814,7 +1814,14 @@ call_encode(struct rpc_task *task)
 			rpc_delay(task, HZ >> 4);
 			break;
 		case -EKEYEXPIRED:
-			task->tk_action = call_refresh;
+			if (!task->tk_cred_retry) {
+				rpc_exit(task, task->tk_status);
+			} else {
+				task->tk_action = call_refresh;
+				task->tk_cred_retry--;
+				dprintk("RPC: %5u %s: retry refresh creds\n",
+					task->tk_pid, __func__);
+			}
 			break;
 		default:
 			rpc_call_rpcerror(task, task->tk_status);